PuTTy times out

[Darwin Sorensen]

Hi,

I consistently get a network timed out message and no connection, of course, from the PuTTY terminal while trying to connect to qiime AWS instances.  Putty documentation says that the problem is between my Windows machine(s) and the server (US East Virginia N).  I have a high speed internet connection.  Is there a fix?  Thanks. Darwin

[Antonio González Peña]

Hi Darwin,

In general these timeouts are due to inactivity in the terminal and
caused by your internet provider, your ssh client or both, so my
suggestion is to either talk to your internet provider or change your
ssh client. Anyway, here you can find a list of ssh clients
http://en.wikipedia.org/wiki/Comparison_of_SSH_clients

Something else that might be useful is to use screen, this will allow
you to recover your session (and running jobs) if your connection gets
terminated, a tutorial can be found in here:
http://www.rackaid.com/resources/linux-screen-tutorial-and-how-to/

Cheers

--
Antonio González Peña
Research Assistant, Knight Lab
University of Colorado at Boulder
https://chem.colorado.edu/knightgroup/

[Darwin Sorensen]

Antonio,
Thank you for you help. The timeout problem was due to me not setting SSH properly in the firewall. I'm sorry that I couldn't find the goof quicker. Now I'm stalled on the next step. The terminal opens with:
Using username: ec2-user
Then a "PuTTY Fatal Error" message that reads "Disconnected: No supported authentication methods available (server sent: public key)."
An earlier attempt resulted in a "Server refused our key" message. Obviously, my efforts to strictly follow the guides for getting the keypair protocol to work has failed and I'm out of ideas.
Thanks. Darwin

The bottom half of the System Log for my latest fatal error attempt follows:

[ 0.782568] Freeing unused kernel memory: 228k freed

[ 0.782670] Write protecting the kernel read-only data: 6484k

init: console-setup main process (63) terminated with status 1


%Ginit: plymouth-splash main process (247) terminated with status 2

init: plymouth main process (45) killed by SEGV signal

cloud-init running: Mon, 11 Jun 2012 21:14:02 +0000. up 27.27 seconds
Generating locales...
en_US.UTF-8... up-to-date
Generation complete.
mountall: Disconnected from Plymouth
init: plymouth-log main process (429) terminated with status 1

* Starting AppArmor profiles Generating public/private rsa key pair.

[80G Your identification has been saved in /etc/ssh/ssh_host_rsa_key.
Your public key has been saved in /etc/ssh/ssh_host_rsa_key.pub.
The key fingerprint is:
da:d7:3d:f3:8a:eb:06:d2:d3:4b:4c:9f:18:9c:ac:29 root@ip-10-108-14-178
The key's randomart image is:
+--[ RSA 2048]----+
| |
| |
| o . |
| * |
| S. * + . |
| oE *.=.o |
| . .o.+..+ |
| . o. + |
| o+....|
+-----------------+
Generating public/private dsa key pair.
Your identification has been saved in /etc/ssh/ssh_host_dsa_key.
Your public key has been saved in /etc/ssh/ssh_host_dsa_key.pub.
The key fingerprint is:
29:e9:2a:12:b4:ab:49:85:94:1a:fb:89:b3:4c:c8:b4 root@ip-10-108-14-178
The key's randomart image is:
+--[ DSA 1024]----+
| |
| . |
|.o |
|o+. . . |
|+o.. o S |
|=+o. . . |
|+E+ . |
|==. . |
|=o .. |
+-----------------+
ec2:
ec2: #############################################################
ec2: -----BEGIN SSH HOST KEY FINGERPRINTS-----
ec2: 2048 da:d7:3d:f3:8a:eb:06:d2:d3:4b:4c:9f:18:9c:ac:29 /etc/ssh/ssh_host_rsa_key.pub (RSA)
ec2: 1024 29:e9:2a:12:b4:ab:49:85:94:1a:fb:89:b3:4c:c8:b4 /etc/ssh/ssh_host_dsa_key.pub (DSA)
ec2: -----END SSH HOST KEY FINGERPRINTS-----
ec2: #############################################################
Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox

[74G[ OK ]
* Setting sensors limits
[80G
[74G[ OK ]
* Exporting directories for NFS kernel daemon...
[80G
[74G[ OK ]
* Starting NFS kernel daemon
[80G
[74G[ OK ]

[33m*
[39;49m Speech-dispatcher configured for user sessions
landscape-client is not configured, please run landscape-config.
* Starting Common Unix Printing System: cupsd
[80G
[74G[ OK ]

[33m*
[39;49m PulseAudio configured for per-user sessions
* Enabling additional executable binary formats binfmt-support
[80G
[74G[ OK ]
* Checking battery state...
[80G
[74G[ OK ]

Ubuntu 10.04.1 LTS ip-10-108-14-178 tty1

ip-10-108-14-178 login:

CloseCancel
System Log: i-c070f4b9

[Antonio González Peña]

Hi Darwin,

Sorry for the slow reply. Have you figured out the issue? Have you
tried following these instructions
http://ged.msu.edu/angus/tutorials-2011/logging-into-ec2-windows.html
?

Cheers

On Mon, Jun 11, 2012 at 4:12 PM, Darwin Sorensen